JPS5843329Y2 - Waterproof mounting structure for speakers - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a waterproof mounting structure for a cone speaker used in a waterproof wireless communication device, a hand-held handset, etc.

Conventionally, this type of mounting structure has been used for speaker 1 as shown in Figure 1.
In many cases, a flat rubber washer 14 is sandwiched between the speaker frame 2 and the inner surface of the case 11, and the periphery of the speaker frame 13 is fixed with screws at several points.

The speaker cone is made of plastic and is waterproof.

However, with this kind of structure, since the periphery of the speaker frame is fixed with screws, the rubber washer receives no surface pressure on average, and only the screw-fixed part is strongly pressed, which causes undue force to be applied to the speaker frame. It had the disadvantages of being easily distorted, having a light and heavy sound quality, and lacking in reliable waterproofness.

In order to eliminate the above-mentioned drawbacks, the present invention provides a waterproof mounting structure for a speaker that does not apply excessive force to the speaker frame and ensures waterproofness.

Next, to explain the present invention, as shown in Fig. 2 and Fig. 3 f, a case 1 has a jetty 2 whose inner side is slightly inclined 3 on the inner side.
, a speaker 6 having a waterproof membrane cone, and a ring 4 made of soft rubber or the like, which has a U-shaped cross section and has a protrusion 5 on the outer periphery, and the ring 4 is placed over the outer periphery of the speaker 6. When the ring is engaged with the ring and then pressed into the jetty 2 provided in the case 1, the inclined surface 3 inside the jetty and the protrusion 5 on the outer periphery of the ring are brought into close contact.

By fixing the holder of the speaker 6 on the ring 4 with screws at several places around the periphery, no unreasonable force that would deform the speaker frame 7 is applied, so that it does not adversely affect the sound quality.

Since the present invention has the above-mentioned structure, in addition to the surface pressure waterproofing effect that conventional rubber washers have when pushed by the speaker fixing screw, the main waterproofing effect is achieved by the convex stripes on the ring periphery and the inner surface of the jetty. I have it.

That is, the pressing force of the ring peripheral convex stripes tends to be uniform, and the ring is characterized in that it is in close contact with the inner surface of the jetty and has excellent waterproof properties.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing a typical conventional example, FIG. 2 is an exploded perspective view of the present invention, and FIG. 3 is a sectional view of a main part. 1... Case 2... Jetty, 3...
...Incline, 4...Ring, 5...Protrusion, 6...Speaker.

Claims (1)

[Scope of utility model registration request] It consists of a speaker with a waterproof membrane cone, a case with a ring-shaped jetty with a slightly inclined inner side on the side for mounting the speaker, and a soft ring with a U-shaped cross section and a protrusion on the outer periphery, A waterproof mounting structure for a speaker, characterized in that the outer peripheral end of the speaker is covered with the ring, and the ring is held and held within the jetty.